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High Flow throttle bodies

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Old 07-04-2005, 04:09 PM
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Mine'* ported too, and I'm anxious to see if my MAF tables in the Jet chip can account for it. I won't run an AFC calibrator, so if the Jet PCM can't adapt to the ported TB, I'm going back to stock.
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Old 07-04-2005, 06:13 PM
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I'm sitting at 106% on the afc and the Ltft are -1 to +1 at idle and while driving around town (2nd gear as high as 4k rpm).
My maf reads .922 at wot with a bit of kr at the usuall shift points (2.7* 2-3 shift).
Iat read 76*f the whole time, ambient is 65*f today.
The idle is a bit high (1k), I'll give the pcm time to re learn.
Well so far so good, the noise level didnt increase unless you count the screams from the passenger seat
I can spin tires in 2nd gear at 20mph now and the torque steer in more aparant now

I'll continue to scan over the next few days in case something developes
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Old 07-04-2005, 07:56 PM
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A few pics without the Afc (need to make a loom up first )

Idle is back down to 950 but its still high.






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Old 07-04-2005, 11:02 PM
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I can spin tires in 2nd gear at 20mph now and the torque steer in more aparant now
Nice.

Proof of success can always be felt by the seat of pants feel.

I tried using the AFC 1.0 and it didn't work. Computer compensated after a short time. Are you using a 2.0
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Old 07-04-2005, 11:28 PM
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Originally Posted by 2000SilverBullet
I can spin tires in 2nd gear at 20mph now and the torque steer in more aparant now
Nice.

Proof of success can always be felt by the seat of pants feel.

I tried using the AFC 1.0 and it didn't work. Computer compensated after a short time. Are you using a 2.0
New 2.2 with digital read out has an advanced mode that I'm still reading up on.
I adjusted the throttle body idle set screw and then swapped out the IAC for the stock one still the idle is up at 925ish?
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Old 07-05-2005, 02:26 AM
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Originally Posted by PontiacDad
Originally Posted by 2000SilverBullet
I can spin tires in 2nd gear at 20mph now and the torque steer in more aparant now
Nice.

Proof of success can always be felt by the seat of pants feel.

I tried using the AFC 1.0 and it didn't work. Computer compensated after a short time. Are you using a 2.0
New 2.2 with digital read out has an advanced mode that I'm still reading up on.
I adjusted the throttle body idle set screw and then swapped out the IAC for the stock one still the idle is up at 925ish?
would the computer learn to lower it after awhile?
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Old 07-05-2005, 11:15 PM
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would the computer learn to lower it after awhile?
That'* what I believe. I think our Bonne computers are more advanced than the GP units.
The only sure way to do it is a re-program.
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Old 07-05-2005, 11:18 PM
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They "learn" idle...and I swear if you hop on it enough it learns that when you want throttle it needs to provide...but that'* a personal observation..
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Old 07-05-2005, 11:41 PM
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Originally Posted by BillBost37
They "learn" idle...and I swear if you hop on it enough it learns that when you want throttle it needs to provide...but that'* a personal observation..
You are right, it does adjust the throttle response to your driving whims. When you go hard on the pedal it will loosen up and rev easier.
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Old 07-07-2005, 07:05 PM
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Been having problems with high idle since the start, it stalled on Pmom yesterday and set the ses light (P507 high idle).
I have a big trip on the weekend and was thinking of swapping back to stock last night.
I read more about the mini afc and tunning and was sure I was doing everything right but the idle was driving me crazy.
So in an attempt to try anything I removed the afc.......hey the idle went down?
Check the scanner and all looked normal too? Ltft were sitting at +1 in park and dropped to -1 while in drive (brake held). I just scanned again as pmom has been running around town today and everything is in check, no afc and idle, maf, O2'* are all good?
Afc'* and bonne'* dont seem to mix well and for some odd reason the pcm can take in all the info from the ported tb and run just fine?
I'm going to take my stock tb with me just in case though, you never know
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